(s)
| 4127 | return ot || (ot = makeOrderedSet(emptyOrderedMap())) |
| 4128 | } |
| 4129 | function Stack(s) { |
| 4130 | return null == s ? emptyStack() : isStack(s) ? s : emptyStack().unshiftAll(s) |
| 4131 | } |
| 4132 | function isStack(s) { |
| 4133 | return !(!s || !s[ct]) |
| 4134 | } |
no test coverage detected